:root {
  --color-primary: #009c97;
  --color-primary-dark: #007a73;
  --color-bg: #f1f1f1;
  --color-bg-light: #ffffff;
  --color-text: #34404e;
  --color-text-dark: #2b2b2b;
  --color-text-light: #666666;
  --color-border: #e0e0e0;
  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --header-height: 70px;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --transition: 0.3s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-dark);
  line-height: 1.3;
  font-weight: 600;
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.btn--secondary {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: #fff;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-light);
  box-shadow: var(--shadow);
  height: var(--header-height);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-dark);
}

.header__logo-icon {
  width: 32px;
  height: 32px;
}

.header__nav {
  display: flex;
  gap: 24px;
}

.header__nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__contact {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__phone {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.header__menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-dark);
  transition: var(--transition);
}

.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,156,151,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero__content {
  max-width: 100%;
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

.hero__buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.section {
  padding: 60px 0;
}

.section--bg {
  background: var(--color-bg-light);
}

.section__title {
  text-align: center;
  margin-bottom: 40px;
}

.advantages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.advantage-card {
  background: var(--color-bg-light);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.advantage-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
}

.advantage-card__title {
  margin-bottom: 8px;
}

.advantage-card__text {
  color: var(--color-text-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--color-bg-light);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: #fff;
}

.service-card__title a {
  color: var(--color-text-dark);
}

.service-card__title a:hover {
  color: var(--color-primary);
}

.service-card__desc {
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.service-card__badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-bg);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-primary);
}

.faq__list {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background: var(--color-bg-light);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq__question {
  padding: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--color-text-dark);
  list-style: none;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-primary);
  transition: var(--transition);
}

.faq__icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  transform: translateY(-50%);
}

.faq__icon::after {
  width: 2px;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
}

details[open] .faq__icon::after {
  transform: translateX(-50%) rotate(90deg);
}

.faq__answer {
  padding: 0 20px 20px;
  color: var(--color-text-light);
}

.cta {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 60px 0;
}

.cta__title {
  color: #fff;
  margin-bottom: 16px;
}

.cta__text {
  font-size: 1.1rem;
  margin-bottom: 24px;
  opacity: 0.9;
}

.cta__buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta .btn--secondary {
  border-color: #fff;
  color: #fff;
}

.cta .btn--secondary:hover {
  background: #fff;
  color: var(--color-primary);
}

.contacts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.contacts__info h3 {
  margin-bottom: 16px;
}

.contacts__item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.contacts__icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.contacts__map {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-light);
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contacts__map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.footer {
  background: var(--color-text-dark);
  color: #fff;
  padding: 60px 0 20px;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer__tagline {
  opacity: 0.8;
  margin-bottom: 20px;
}

.footer__social {
  display: flex;
  gap: 12px;
}

.footer__social-link {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: var(--transition);
}

.footer__social-link:hover {
  background: var(--color-primary);
}

.footer__title {
  color: #fff;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.footer__address {
  font-style: normal;
  line-height: 1.8;
}

.footer__address a {
  color: #fff;
  opacity: 0.8;
}

.footer__address a:hover {
  opacity: 1;
}

.footer__nav a {
  display: block;
  color: #fff;
  opacity: 0.8;
  margin-bottom: 8px;
}

.footer__nav a:hover {
  opacity: 1;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  opacity: 0.6;
}

.footer__dev {
  margin-top: 8px;
  font-size: 0.85rem;
}

.footer__dev a {
  color: var(--color-primary);
}

.footer__dev a:hover {
  text-decoration: underline;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 8px;
  font-size: 0.9rem;
}

.breadcrumb li::after {
  content: ' /';
  opacity: 0.5;
}

.breadcrumb li:last-child::after {
  display: none;
}

.breadcrumb a {
  color: var(--color-primary);
}

.service-page {
  padding: 40px 0;
}

.service-page__header {
  margin-bottom: 40px;
}

.service-page__lead {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin: 20px 0;
}

.service-page__price {
  display: inline-block;
  padding: 8px 20px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
}

.service-page__content {
  max-width: 800px;
}

.service-page__section {
  margin-bottom: 40px;
}

.service-page__section h3 {
  margin-bottom: 16px;
}

.service-page__steps {
  counter-reset: steps;
}

.service-page__step {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.service-page__step::before {
  counter-increment: steps;
  content: counter(steps);
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 600;
}

@media (max-width: 768px) {
  .header__nav,
  .header__contact {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-light);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    z-index: 99;
  }

  .header__nav.active,
  .header__contact.active {
    display: flex;
  }

  .header__nav {
    align-items: flex-start;
    padding-top: 40px;
  }

  .header__nav-link {
    font-size: 1.25rem;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
  }

  .header__contact {
    flex-direction: column;
    justify-content: center;
    gap: 16px;
  }

  .header__phone {
    font-size: 1.2rem;
  }

  .header__menu-toggle {
    display: flex;
  }

  .header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero__title {
    font-size: 2rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .container {
    padding: 0 16px;
  }

  .section {
    padding: 40px 0;
  }
}

@media (max-width: 1024px) {
  :root {
    --container-width: 960px;
  }
}